Wen PW3400 Instruction Manual
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Wen PW3400 Instruction Manual

3400-psi carb compliant pressure washer
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MODEL PW3400
3400-PSI CARB COMPLIANT
PRESSURE WASHER
Instruction Manual
NEED HELP? CONTACT US!
Have product questions? Need technical support? Please feel free to contact us:
1-847-429-9263 (M-F 8AM-5PM CST)
TECHSUPPORT@WENPRODUCTS.COM
IMPORTANT: Your new tool has been engineered and manufactured to WEN's highest standards for dependability,
ease of operation, and operator safety. When properly cared for, this product will supply you years of rugged,
trouble-free performance. Pay close attention to the rules for safe operation, warnings, and cautions. If you use
your tool properly and for its intended purpose, you will enjoy years of safe, reliable service.
WENPRODUCTS.COM
For replacement parts and the most up-to-date instruction manuals, visit

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Summary of Contents for Wen PW3400

  • Page 1 1-847-429-9263 (M-F 8AM-5PM CST) TECHSUPPORT@WENPRODUCTS.COM IMPORTANT: Your new tool has been engineered and manufactured to WEN’s highest standards for dependability, ease of operation, and operator safety. When properly cared for, this product will supply you years of rugged, trouble-free performance. Pay close attention to the rules for safe operation, warnings, and cautions. If you use your tool properly and for its intended purpose, you will enjoy years of safe, reliable service.

  • Page 2: Table Of Contents

    CONTENTS WELCOME Specifications ....................3 Introduction ..................... 4 SAFETY General Safety Rules ..................5 Pressure Washer Safety Warnings ..............7 BEFORE OPERATING Know Your Pressure Washer ................9 Unpacking & Packing List ................10 Assembly & Adjustments ................11 OPERATION & MAINTENANCE Operation .......................

  • Page 3: Welcome

    SPECIFICATIONS PRESSURE WASHER Model Number PW3400 Maximum Pressure 3400 PSI Maximum Flow 2.7 GPM - 3400 PSI Nozzles 0°, 15°, 25°, 40°, Soap Nozzle Gun to Lance Connection M22 Thread, 14mm Connector Gun to Hose Connection M22 Thread, 14mm Connector Lance 21”...

  • Page 4: Introduction

    INTRODUCTION Thanks for purchasing the WEN 3400 PSI Pressure Washer. Refer to the illustration below for the location of the serial number on the specifications label. Record the pressure washer information in the spaces provided below. If assistance for information or service is required, please contact customer service by calling 1-847-429-9263, M-F 8-5 CST;...

  • Page 5: Safety

    GENERAL SAFETY RULES WARNING! Read all safety warnings and all instructions. Failure to follow the warnings and instructions may result in electric shock, fire and/or serious injury. Safety is a combination of common sense, staying alert and knowing how your item works. The term “power tool” in the warnings refers to your mains-operated (corded) power tool or battery-operated (cordless) power tool.
  • Page 6 GENERAL SAFETY RULES WARNING! Read all safety warnings and all instructions. Failure to follow the warnings and instructions may result in electric shock, fire and/or serious injury. Safety is a combination of common sense, staying alert and knowing how your item works. The term “power tool” in the warnings refers to your mains-operated (corded) power tool or battery-operated (cordless) power tool.

  • Page 7: Pressure Washer Safety Warnings

    PRESSURE WASHER SAFETY WARNINGS DANGER! CARBON MONOXIDE Using a pressure washer indoors CAN KILL YOU IN MINUTES. Pressure washer exhaust contains carbon monoxide (CO). This is a poison gas you cannot see or smell. If you can smell the pressure washer exhaust, you are breathing CO.
  • Page 8 SAVE THESE INSTRUCTIONS – This manual contains important instructions for the WEN® Pressure Washer 2. Allow the pressure washer to cool down after use that should be followed during installation and mainte- before touching the engine or areas of the pressure nance of the pressure washer.

  • Page 9: Before Operating

    KNOW YOUR PRESSURE WASHER TOOL PURPOSE Easily remove dirt and grime from your deck, siding, and driveway with your WEN Pressure Washer. Refer to the following diagrams to become familiarized with all the parts and controls of your pressure washer. The components will be referred to later in the manual for assembly and operation instructions.

  • Page 10: Unpacking & Packing List

    UNPACKING & PACKING LIST UNPACKING With the help of a friend or trustworthy foe, such as one of your in-laws, carefully remove the pressure washer from the packaging and place it on a sturdy, flat surface. Make sure to take out all contents and accessories. Do not discard the packaging until everything is removed.

  • Page 11: Assembly & Adjustments

    ASSEMBLY & ADJUSTMENTS ATTACHING FOOT ASSEMBLY (FIG. 1) Fig. 1 1. Raise or tilt pressure washer so you can line up foot with the hole located at the center of the frame. 2. Align the rubber foot (Fig. 1 - 1) with the hole in the frame. Attach foot by inserting the bolt from the bottom up, then attach the locking nut (Fig.
  • Page 12 ASSEMBLY & ADJUSTMENTS ADD ENGINE OIL The pressure washer is shipped without oil. User must add the proper amount of oil before operat- 5W-30, 10W-30 ing the pressure washer for the first time. The oil capacity of the engine crankcase is 20.3 fl. oz. SYNTHETIC 5W-20, 10W-30 (600 mL).
  • Page 13 You can order the kit at wenproducts.com by searching part no. PW3400-HA27. This kit should be installed by a qualified mechanic. Refer to the instructions included with your altitude kit for more information about installation.

  • Page 14: Operation & Maintenance

    ASSEMBLY & ADJUSTMENTS CONNECTING GARDEN HOSE TO PRESSURE WASHER Fig. 8 (FIG. 8) 1. Run water through the hose for a few seconds to flush any debris from the hose. 2. Inspect water inlet screen and remove any debris. 3. Connect hose (Fig. 8 - 1) to water inlet (Fig. 8 - 2) and tighten by hand.
  • Page 15 OPERATION STARTING PRESSURE WASHER (FIG. 10 & 11) Fig. 10 1. Place pressure washer on a level surface. Turn on water. 2. Purge the system’s pump of air by releasing the safety and squeez- ing the trigger of the spray gun. Attach lance to spray gun. 3.
  • Page 16 OPERATION STOPPING PRESSURE WASHER (FIG. 12) Fig. 12 1. Turn the fuel valve to the OFF position. Let the engine run until the fuel is used up. 2. Turn the ON/OFF switch (Fig. 12 - 1) to the OFF position. NOTE: If for some reason you need to stop the pressure washer quickly, simply flip the ON/OFF switch to OFF.

  • Page 17: Maintenance

    MAINTENANCE RECOMMENDED MAINTENANCE SCHEDULE Proper routine maintenance of the pressure washer will help prolong the life of the machine. Please perform main- tenance checks and operations according to the maintenance schedule below. If there are any questions about the maintenance procedures listed in this manual, please contact customer service at 1-847-429-9263 (M-F 8-5 CST), or email techsupport@wenproducts.com.
  • Page 18 MAINTENANCE AFTER EACH USE Fig. 15 Follow these procedures after each use: 1. Shut off engine and turn off water supply. Release water pressure by pointing spray gun in a safe direction and squeezing the trigger. 2. Disconnect high pressure hose, spray gun, and nozzle. Drain wa- Max Oil Level ter from items and use a rag to wipe down the outside of the hose and spray gun.
  • Page 19 MAINTENANCE CHANGING/ADDING OIL (FIG. 17) Fig. 17 Change the oil according to the Recommended Maintenance Sched- ule on page 17. Change the oil when the engine is warm to allow for complete drainage. Change oil more often if operating under heavy load or high ambient temperatures.
  • Page 20 MAINTENANCE DRAINING THE FUEL TANK Clean fuel tank each year or before storing the pressure washer for extended periods of time. To drain the fuel tank and carburetor: 1. Prepare an approved gasoline-storage container. Turn the fuel valve to the “OFF” position. Position the container so it will catch fuel draining from the carburetor drain screw.

  • Page 21: Transportation & Storage

    2. Inspect couplings for damage. Immediately replace hose if damage is found. WARNING! Never repair a high pressure hose or use unit if the hose is damaged. If the hose is damaged, replace it. Contact WEN customer service for assistance. SPRAY GUN 1.
  • Page 22 TRANSPORTATION & STORAGE STORING THE PRESSURE WASHER FOR EXTENDED PERIODS 1. Drain the fuel tank (see “Draining the Fuel Tank” in the “Maintenance” section). 2. Change oil. 3. Do not obstruct any ventilation openings. 4. Keep the pressure washer in a cool dry area. WINTER STORAGE (BELOW 40°F) 1.

  • Page 23: Troubleshooting Guide

    TROUBLESHOOTING GUIDE WARNING! Stop using the pressure washer immediately if any of the following problems occur or risk seri- ous personal injury. If you have any questions, please contact customer service at 1-847-429-9263 (M-F 8-5 CST), or email techsupport@wenproducts.com. PROBLEM CAUSE SOLUTION 1.

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